Retinol is only effectivre at night according to my research. I use the Retinol Correxion deep wrinkle cream at night and it really works. And, it's a good idea to start with a serum, then the wrinkle cream, followed by night cream.
— 4 years ago

My mom began using this and within one month her skin was free of deep wrinkles!! She smokes, so she had a lot of them. It really smoothes out the eye area. Just don't use it around them if the eye area is dry.
— 7 years, 2 months ago

Sweet retinol, how I love thee! For $20 you can't go wrong. I've been using this serum for about a year now and it really does what it says. I had to build myself up usage wise. I started using it every two days, then every other day and now I use it twice a day. It stings a bit at first but don't give up! My laugh lines are less pronounced, softer and seem yo be slowly fading away. Keeps my skin nice and soft too.
— 12 months ago